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Harcourt Math Glossary
Grade 5
A absolute value acute angle acute triangle addend addition angle area array ascending Associative Property of Addition Associative Property of Multiplication average axis B bar graph base
httpwwwhbschoolcomglossarymath2index5html (1 of 13)222005 92551 AM
Harcourt Math Glossary
base benchmark billion C capacity cardinal number centimeter central angle certain chord circle circle graph circumference closed figure common factor common multiple Commutative Property of Addition Commutative Property of Multiplication compass compatible number composite number
httpwwwhbschoolcomglossarymath2index5html (2 of 13)222005 92551 AM
Harcourt Math Glossary
cone congruent congruent figures contrast coordinate plane coordinates cube cubic unit cumulative frequency cup (c) cylinder D data decimal number decimal point decimal system decimeter (dm) degree(deg) degree Celsius (degC) degree Fahrenheit (degF) denominator descending
httpwwwhbschoolcomglossarymath2index5html (3 of 13)222005 92551 AM
Harcourt Math Glossary
diameter difference digit dimension Distributive Property of Multiplication dividend divisible division divisor double-bar graph E edge elapsed time equally likely equation equilateral triangle equivalent equivalent decimals equivalent fractions equivalent ratios estimate (noun)
httpwwwhbschoolcomglossarymath2index5html (4 of 13)222005 92551 AM
Harcourt Math Glossary
estimate (verb) evaluate event expanded form exponent expression F face factor factor tree figurate numbers foot (ft) formula fraction frequency frequency table function function table G gallon gram greater than greatest common factor
httpwwwhbschoolcomglossarymath2index5html (5 of 13)222005 92551 AM
Harcourt Math Glossary
H height hexagon histogram hundredth hypotenuse I impossible inch inequality integers intersecting lines interval inverse operations isosceles triangle J K kilogram (kg) kiloliter (kL) kilometer (km) L least common denominator (LCD) least common multiple (LCM)
httpwwwhbschoolcomglossarymath2index5html (6 of 13)222005 92551 AM
Harcourt Math Glossary
leg less than (lt) like fractions line linear unit line graph line plot line segment line symmetry liter (L) M map scale mass mean median meter mile milligram (mg) milliliter (mL) millimeter (mm) million mixed number mode
httpwwwhbschoolcomglossarymath2index5html (7 of 13)222005 92551 AM
Harcourt Math Glossary
multiple multiplication multistep problem N negative integer net nominal number number line numerator O obtuse angle obtuse triangle octagon opposites ordered pair order of operations ordinal number origin ounce (oz) outcome outlier P parallel lines parallelogram
httpwwwhbschoolcomglossarymath2index5html (8 of 13)222005 92551 AM
Harcourt Math Glossary
parentheses pentagon percent perimeter period perpendicular lines
pictograph pint place value plane plane figure point point symmetry polygon polyhedron positive integer possible outcomes pound (lb) precision prediction prime factorization prime number
httpwwwhbschoolcomglossarymath2index5html (9 of 13)222005 92551 AM
Harcourt Math Glossary
prioritize prism probability product Property of One proportion protractor pyramid Q quadrilateral quart quotient R radius range ratio ray reciprocal rectangle rectangular prism reflection regular polygon rhombus right angle
httpwwwhbschoolcomglossarymath2index5html (10 of 13)222005 92551 AM
Harcourt Math Glossary
right triangle rotation rotational symmetry rounding S scale scale drawing scalene triangle schedule scientific notation similar figures simplest form solid figure solution sphere square square number square pyramid square unit standard form stem-and-leaf plot subtraction
httpwwwhbschoolcomglossarymath2index5html (11 of 13)222005 92551 AM
Harcourt Math Glossary
sum surface area survey T tally table tangram tenth ten-thousandth tessellation thousandth three-dimensional ton transformation translation (slide) trapezoid tree diagram triangle triangular number two-dimensional U unlike fractions unlikely V variable
httpwwwhbschoolcomglossarymath2index5html (12 of 13)222005 92551 AM
Harcourt Math Glossary
Venn diagram vertex volume W whole number word form X x-axis x-coordinate Y y-axis y-coordinate Z Zero Property of Addition Zero Property of Multiplication -- Tables -- metric customary time formulas symbols
httpwwwhbschoolcomglossarymath2index5html (13 of 13)222005 92551 AM
Grade 5 Words
Grade 5
A absolute value acute angle acute triangle addend addition angle area array ascending Associative Property of Addition Associative Property of Multiplication average axis B bar graph base base benchmark billion C capacity
httpwwwhbschoolcomglossarymath2wordswords5html (1 of 13)222005 92556 AM
Grade 5 Words
cardinal number centimeter central angle certain chord circle circle graph circumference closed figure common factor common multiple Commutative Property of Addition Commutative Property of Multiplication compass compatible number composite number cone congruent congruent figures contrast coordinate plane coordinates
httpwwwhbschoolcomglossarymath2wordswords5html (2 of 13)222005 92556 AM
Grade 5 Words
cube cubic unit cumulative frequency cup (c) cylinder D data decimal number decimal point decimal system decimeter (dm) degree(deg) degree Celsius (degC) degree Fahrenheit (degF) denominator descending diameter difference digit dimension Distributive Property of Multiplication dividend divisible
httpwwwhbschoolcomglossarymath2wordswords5html (3 of 13)222005 92556 AM
Grade 5 Words
division divisor double-bar graph E edge elapsed time equally likely equation equilateral triangle equivalent equivalent decimals equivalent fractions equivalent ratios estimate (noun) estimate (verb) evaluate event expanded form exponent expression F face factor
httpwwwhbschoolcomglossarymath2wordswords5html (4 of 13)222005 92556 AM
Grade 5 Words
factor tree figurate numbers foot (ft) formula fraction frequency frequency table function function table G gallon gram greater than greatest common factor H height hexagon histogram hundredth hypotenuse I impossible inch
httpwwwhbschoolcomglossarymath2wordswords5html (5 of 13)222005 92556 AM
Grade 5 Words
inequality integers intersecting lines interval inverse operations isosceles triangle J K kilogram (kg) kiloliter (kL) kilometer (km) L least common denominator (LCD) least common multiple (LCM) leg less than (lt) like fractions line linear unit line graph line plot line segment line symmetry liter (L)
httpwwwhbschoolcomglossarymath2wordswords5html (6 of 13)222005 92556 AM
Grade 5 Words
M map scale mass mean median meter mile milligram (mg) milliliter (mL) millimeter (mm) million mixed number mode multiple multiplication multistep problem N negative integer net nominal number number line numerator O
httpwwwhbschoolcomglossarymath2wordswords5html (7 of 13)222005 92556 AM
Grade 5 Words
obtuse angle obtuse triangle octagon opposites ordered pair order of operations ordinal number origin ounce (oz) outcome outlier P parallel lines parallelogram parentheses pentagon percent perimeter period perpendicular lines
pictograph pint
httpwwwhbschoolcomglossarymath2wordswords5html (8 of 13)222005 92556 AM
Grade 5 Words
place value plane plane figure point point symmetry polygon polyhedron positive integer possible outcomes pound (lb) precision prediction prime factorization prime number prioritize prism probability product Property of One proportion protractor pyramid
httpwwwhbschoolcomglossarymath2wordswords5html (9 of 13)222005 92556 AM
Grade 5 Words
Q quadrilateral quart quotient R radius range ratio ray reciprocal rectangle rectangular prism reflection regular polygon rhombus right angle right triangle rotation rotational symmetry rounding S scale scale drawing
httpwwwhbschoolcomglossarymath2wordswords5html (10 of 13)222005 92556 AM
Grade 5 Words
scalene triangle schedule scientific notation similar figures simplest form solid figure solution sphere square square number square pyramid square unit standard form stem-and-leaf plot subtraction sum surface area survey T tally table tangram tenth ten-thousandth
httpwwwhbschoolcomglossarymath2wordswords5html (11 of 13)222005 92556 AM
Grade 5 Words
tessellation thousandth three-dimensional ton transformation translation (slide) trapezoid tree diagram triangle triangular number two-dimensional U unlike fractions unlikely V variable Venn diagram vertex volume W whole number word form X x-axis
httpwwwhbschoolcomglossarymath2wordswords5html (12 of 13)222005 92556 AM
Grade 5 Words
x-coordinate Y y-axis y-coordinate Z Zero Property of Addition Zero Property of Multiplication -- Tables -- metric customary time formulas symbols
httpwwwhbschoolcomglossarymath2wordswords5html (13 of 13)222005 92556 AM
Associative Property of Multiplication
Associative Property of Multiplication
The property that states that the way factors are grouped does not change the product
Example
(2 x 3) x 4 = 2 x (3 x 4)
6 x 4 = 2 x 12 24 = 24
httpwwwhbschoolcomglossarymath2definegr5asso_prop_multi5html222005 92556 AM
Harcourt Math Glossary
Grade K
A above add after afternoon alike B bar graph before below between bottom C calendar circle clocks cone cube cylinder D
httpwwwhbschoolcomglossarymath2indexkhtml (1 of 6)222005 92607 AM
Harcourt Math Glossary
dime E eight eighteen eleven equals equal parts evening F fifteen fifth first five four fourteen fourth G H halves heavier I inside J K L last left
httpwwwhbschoolcomglossarymath2indexkhtml (2 of 6)222005 92607 AM
Harcourt Math Glossary
less lighter long longer longest M middle minus money more morning N next nickel nine nineteen not alike O outside over P pattern pattern unit penny picture graph
httpwwwhbschoolcomglossarymath2indexkhtml (3 of 6)222005 92607 AM
Harcourt Math Glossary
plus Q quarter R rectangle right S same seasons second seven seventeen shapes short shorter shortest six sixteen sort sphere square subtract T tall
httpwwwhbschoolcomglossarymath2indexkhtml (4 of 6)222005 92607 AM
Harcourt Math Glossary
taller tallest ten third thirteen thirty three top triangle twelve twenty twenty-eight twenty-five twenty-four twenty-nine twenty-one twenty-seven twenty-six twenty-three twenty-two two U under V
httpwwwhbschoolcomglossarymath2indexkhtml (5 of 6)222005 92607 AM
Harcourt Math Glossary
W X Y Z zero
httpwwwhbschoolcomglossarymath2indexkhtml (6 of 6)222005 92607 AM
Harcourt Math Glossary
Grade 1
A add addition sentence after B balance bar graph before between C calendar centimeter circle cone corner count back count on cube cylinder D
httpwwwhbschoolcomglossarymath2index1html (1 of 5)222005 92608 AM
Harcourt Math Glossary
day difference dime doubles doubles plus one E equal parts equals estimate even numbers F fact family fewer flat surface fractions G greater than H half hour heavier hour hour hand I inch J K
httpwwwhbschoolcomglossarymath2index1html (2 of 5)222005 92608 AM
Harcourt Math Glossary
L less than lighter line of symmetry M minus minute hand month more than N nickel number line number sentence O oclock odd numbers one dollar one less one more ones Order Property ordinal numbers P pattern pattern unit
httpwwwhbschoolcomglossarymath2index1html (3 of 5)222005 92608 AM
Harcourt Math Glossary
penny picture graph plus pyramid Q quarter R rectangle rectangular prism related facts rule ruler S side sort sphere square subtract subtraction sentence sum T tally chart tally marks ten less
httpwwwhbschoolcomglossarymath2index1html (4 of 5)222005 92608 AM
Harcourt Math Glossary
ten more tens trade triangle U V W X Y Z
httpwwwhbschoolcomglossarymath2index1html (5 of 5)222005 92608 AM
Harcourt Math Glossary
Grade 2
A AM add addend after array B bar graph before between C calendar centimeter circle cone congruent figures corner count back count on cube
httpwwwhbschoolcomglossarymath2index2html (1 of 5)222005 92610 AM
Harcourt Math Glossary
cup cylinder D difference digits dime divide dollar doubles doubles plus one E edge equal groups equal parts equal sign equal to estimate even numbers F face fact family flip foot fractions
httpwwwhbschoolcomglossarymath2index2html (2 of 5)222005 92610 AM
Harcourt Math Glossary
G gram greater than gt H half dollar half hour hour hundred hundreds I inch J K L less than lt line of symmetry liter M meter minutes multiplication sentence multiply N nickel number sentences O odd numbers
httpwwwhbschoolcomglossarymath2index2html (3 of 5)222005 92610 AM
Harcourt Math Glossary
ones Order Property ordinal numbers ounce oval P PM pattern penny perimeter pictograph picture graph pint pound product pyramid Q quart quarter R rectangle rectangular prism regroup round
httpwwwhbschoolcomglossarymath2index2html (4 of 5)222005 92610 AM
Harcourt Math Glossary
S side skip-count slide sphere square subtract sum T table tally marks temperature ten frame tens triangle turn U V W X Y Z Zero Property
httpwwwhbschoolcomglossarymath2index2html (5 of 5)222005 92610 AM
Harcourt Math Glossary
Grade 3
A acute angle acute triangle addend addition AM angle area array B bar graph benchmark numbers C calendar capacity cardinal number center centimeter certain
httpwwwhbschoolcomglossarymath2index3html (1 of 11)222005 92612 AM
Harcourt Math Glossary
classify closed figure compare cone congruent figures corner counting on counting up cube cubic unit cup cylinder D data decimal decimal point decimeter degree Celsius (degC) degree Fahrenheit (degF) denominator diameter difference digit
httpwwwhbschoolcomglossarymath2index3html (2 of 11)222005 92612 AM
Harcourt Math Glossary
divide dividend division divisor doubles doubles minus one doubles plus one E edge elapsed time equal sign equally likely equilateral triangle equivalent equivalent fractions estimate (noun) estimate (verb) even number event expanded form experiment expression F
httpwwwhbschoolcomglossarymath2index3html (3 of 11)222005 92612 AM
Harcourt Math Glossary
face fact family factor fair flip foot fraction frequency table G gallon gram greater than (gt) grid Grouping Property of Addition Grouping Property of Multiplication H hexagon horizontal bar graph hour (hr) hour hand hundredth I impossible
httpwwwhbschoolcomglossarymath2index3html (4 of 11)222005 92612 AM
Harcourt Math Glossary
inch intersecting lines inverse operations isosceles triangle J K key kilogram (kg) kilometer (km) L least likely less than (lt) like fractions likely line line graph line of symmetry line plot line segment liter (L) M make a ten mass meter (m) midnight
httpwwwhbschoolcomglossarymath2index3html (5 of 11)222005 92612 AM
Harcourt Math Glossary
mile (mi) milliliter (mL) minute (min) minute hand mixed number mode most likely multiplication multiply multistep problem N noon number line number sentence numerator O obtuse angle obtuse triangle octagon odd number open figure opposite operations Order Property of Addition
httpwwwhbschoolcomglossarymath2index3html (6 of 11)222005 92612 AM
Harcourt Math Glossary
Order Property of Multiplication ordered pair ordinal number ounce (oz) outcome P parallel lines parallelogram pentagon perimeter pictograph pint (pt) place value place-value charts plane plane figure PM point point symmetry polygon possible outcome pound (lb)
httpwwwhbschoolcomglossarymath2index3html (7 of 11)222005 92612 AM
Harcourt Math Glossary
predict product pyramid Q quadrilateral quart quotient R radius range ray rectangle rectangular prism regroup remainder results rhombus right angle right triangle round rounding S scale scalene triangle
httpwwwhbschoolcomglossarymath2index3html (8 of 11)222005 92612 AM
Harcourt Math Glossary
schedule sequence similar simplest form slide solid figure sphere square square number square pyramid square unit standard form subtraction sum survey symmetry T tally table tangram tenth tessellate tessellation time line
httpwwwhbschoolcomglossarymath2index3html (9 of 11)222005 92612 AM
Harcourt Math Glossary
trapezoid triangle turn U unit cost unlikely V variable vertex vertical bar graph volume W whole number word form X Y yard Z Zero Property of Addition Zero Property of Multiplication -- Tables -- metric customary time money
httpwwwhbschoolcomglossarymath2index3html (10 of 11)222005 92612 AM
Harcourt Math Glossary
symbols
httpwwwhbschoolcomglossarymath2index3html (11 of 11)222005 92612 AM
Harcourt Math Glossary
Grade 4
A AM acute angle addend addition analog clock angle area array Associative Property of Addition Associative Property of Multiplication average B bar graph benchmark C calendar capacity
httpwwwhbschoolcomglossarymath2index4html (1 of 13)222005 92616 AM
Harcourt Math Glossary
cardinal number center centimeter (cm) century certain chord circle circle graph circumference closed figure compass compatible numbers composite number cone congruent congruent figures coordinate grid corner cube cubic unit cumulative frequency
httpwwwhbschoolcomglossarymath2index4html (2 of 13)222005 92616 AM
Harcourt Math Glossary
cup (c) cylinder D data decade decimal decimal number system decimal point decimeter degree degree Celsius (degC) degree Fahrenheit (degF) denominator diameter difference digit digital clock dimension Distributive Property of Multiplication dividend divisible
httpwwwhbschoolcomglossarymath2index4html (3 of 13)222005 92616 AM
Harcourt Math Glossary
division divisor double-bar graph E edge elapsed time equally likely equation equilateral triangle equivalent equivalent decimals equivalent fractions estimate (noun) estimate (verb) event expanded form expression F face fact family factor factor tree fairness
httpwwwhbschoolcomglossarymath2index4html (4 of 13)222005 92616 AM
Harcourt Math Glossary
flip (reflection) foot (ft) formula fraction frequency frequency table function table G gallon (gal) gram (g) greater than (gt) grid Grouping Property of Addition Grouping Property of Multiplication H hexagon hour (hr) hour hand (hr) horizontal hundredth I impossible inch (in)
httpwwwhbschoolcomglossarymath2index4html (5 of 13)222005 92616 AM
Harcourt Math Glossary
intersecting lines interval inverse operations isosceles triangle J K key kilogram (kg) kilometer (km) L leaf less than (lt) like fractions likely line line graph line plot line segment line symmetry linear units liter (L) M mass mathematical probability
httpwwwhbschoolcomglossarymath2index4html (6 of 13)222005 92616 AM
Harcourt Math Glossary
mean median meter (m) mile (mi) milliliter (mL) millions minute (min) minute hand mixed number mode multiple multiplication multistep problem N negative numbers net nominal number number line numerator O obtuse angle octagon odd number one-dimensional
httpwwwhbschoolcomglossarymath2index4html (7 of 13)222005 92616 AM
Harcourt Math Glossary
open figure Order Property of Addition Order Property of Multiplication ordered pair ordinal number ounce (oz) outcome outlier P PM parallel lines parallelogram parentheses partial product pentagon perimeter period perpedicular lines pictograph pint (pt) place value plane
httpwwwhbschoolcomglossarymath2index4html (8 of 13)222005 92616 AM
Harcourt Math Glossary
plane figure point polygon positive numbers pound (lb) predict prime factor prime number probability product Property of One protractor pyramid Q quadrilateral quart (qt) quotient R radius range ray rectangle rectangular prism reflection (flip)
httpwwwhbschoolcomglossarymath2index4html (9 of 13)222005 92616 AM
Harcourt Math Glossary
regroup regular polygon remainder rhombus right angle right triangle rotation (turn) rotational symmetry rounding S scale scalene triangle schedule seconds (sec) similar similar figures simplest form slide (translation) solid figure sphere square square number
httpwwwhbschoolcomglossarymath2index4html (10 of 13)222005 92616 AM
Harcourt Math Glossary
square pyramid square unit standard form stem stem-and-leaf plot subtraction sum survey T tally table tenth tessellation thousandth three-dimensional time line ton (T) transformation translation (slide) trapezoid tree diagram trends triangle turn (rotation)
httpwwwhbschoolcomglossarymath2index4html (11 of 13)222005 92616 AM
Harcourt Math Glossary
two-dimensional U unlike fractions unlikely V variable Venn diagram vertex vertical volume W weight whole number word form X x-axis x-coordinate Y y-axis y-coordinate yard (yd) Z Zero Property of Multiplication -- Tables -- metric
httpwwwhbschoolcomglossarymath2index4html (12 of 13)222005 92617 AM
Harcourt Math Glossary
customary time money symbols
httpwwwhbschoolcomglossarymath2index4html (13 of 13)222005 92617 AM
Harcourt Math Glossary
Grade 6
A absolute value acute angle acute triangle Addition Property of Equality additive inverse adjacent angles algebraic expression algebraic operating system angle arc area Associative Property average axes B bar graph
httpwwwhbschoolcomglossarymath2index6html (1 of 15)222005 92619 AM
Harcourt Math Glossary
base base biased question biased sample bisect box-and-whisker graph C capacity Celsius center of a circle certain chord circle circle graph circumference closed figure clustering common factor common multiple Commutative Property compatible numbers compensation
httpwwwhbschoolcomglossarymath2index6html (2 of 15)222005 92619 AM
Harcourt Math Glossary
complement complementary angles composite number compound event cone congruent congruent figures congruent polygons convenience sample coordinate plane coordinates corresponding angles corresponding sides cross products cube cumulative frequency customary measurement system cylinder
httpwwwhbschoolcomglossarymath2index6html (3 of 15)222005 92619 AM
Harcourt Math Glossary
D data decimal decimal system degree degree Celsius (degC) degree Fahrenheit (degF) denominator dependent events diameter difference dimension discount Distributive Property of Multiplication dividend divisible Division Property of Equality divisor E edge equally likely
httpwwwhbschoolcomglossarymath2index6html (4 of 15)222005 92619 AM
Harcourt Math Glossary
equation equilateral triangle equivalent equivalent decimals equivalent fractions equivalent ratios estimate (noun) estimate (verb) evaluate event experimental probability exponent expression F face factor factor tree Fahrenheit Fibonacci Sequence formula fractal
httpwwwhbschoolcomglossarymath2index6html (5 of 15)222005 92619 AM
Harcourt Math Glossary
fraction frequency table function Fundamental Counting Principle G Golden Ratio Golden Rectangle greater than greatest common factor (GCF) H height hexagon histogram hypotenuse I Identity Property of One Identity Property of Zero impossible independent events indirect measurement inequality integers
httpwwwhbschoolcomglossarymath2index6html (6 of 15)222005 92619 AM
Harcourt Math Glossary
intersecting lines interval inverse operations isosceles triangle J K L lateral faces least common denominator (LCD) least common multiple (LCM) leg less than like terms line line graph line of symmetry line plot line segment line symmetry lower extreme lower quartile M map scale
httpwwwhbschoolcomglossarymath2index6html (7 of 15)222005 92619 AM
Harcourt Math Glossary
mean measure of central tendency median metric system midpoint mixed number mode multiple multiple-bar graph multiple-line graph Multiplication Property of Equality multistep problem N negative integer net network number line numerator numerical expression O obtuse angle
httpwwwhbschoolcomglossarymath2index6html (8 of 15)222005 92619 AM
Harcourt Math Glossary
obtuse triangle octagon opposites ordered pair order of operations origin outcome outlier overestimate P parallel lines parallelogram pentagon percent perimeter period perpendicular lines
place value plane plane figure point point of rotation polygon
httpwwwhbschoolcomglossarymath2index6html (9 of 15)222005 92619 AM
Harcourt Math Glossary
polyhedron population positive integer precision prediction prime factorization prime number principal prism probability (P) product Property of Zero proportion pyramid Pythagorean Theorem Q quadrants quadrilateral quotient R radius random sample range
httpwwwhbschoolcomglossarymath2index6html (10 of 15)222005 92619 AM
Harcourt Math Glossary
rate ratio rational number ray reciprocal rectangle rectangular prism reflection regular polygon relation repeating decimal rhombus right angle right triangle rotation (turn) rotational symmetry S sales tax sample sample space scale scale
httpwwwhbschoolcomglossarymath2index6html (11 of 15)222005 92619 AM
Harcourt Math Glossary
scale drawing scalene triangle scatterplot sector self-similarity sequence similar figures simple interest simplest form simulation solid figure solution solve an equation sphere square square number square root standard form stem-and-leaf plot straight angle Subtraction Property of Equality sum
httpwwwhbschoolcomglossarymath2index6html (12 of 15)222005 92619 AM
Harcourt Math Glossary
supplementary angles surface area survey systematic sample T tally table tangram term term terms terminating decimal tessellation theoretical probability three-dimensional transformation translation (slide) trapezoid tree diagram triangle triangular number U unbiased sample
httpwwwhbschoolcomglossarymath2index6html (13 of 15)222005 92619 AM
Harcourt Math Glossary
underestimate unit rate unlike fractions upper extreme upper quartile V variable Venn diagram vertex vertical angles volume W whole number X x-axis x-coordinate Y y-axis y-coordinate Z -- Tables -- metric customary time formulas
httpwwwhbschoolcomglossarymath2index6html (14 of 15)222005 92619 AM
Harcourt Math Glossary
symbols
httpwwwhbschoolcomglossarymath2index6html (15 of 15)222005 92619 AM
absolute value
absolute value
The distance of a number from zero on a number line
Example
|-4| The absolute value of -4 is 4
|+4| The absolute value of +4 is 4
httpwwwhbschoolcomglossarymath2definegr5absolute_value5html222005 92620 AM
acute angle
acute angle
An angle that has a measure less than a right angle (less than 90deg)
Example
httpwwwhbschoolcomglossarymath2definegr5acute_angle5html222005 92620 AM
acute triangle
acute triangle
A triangle in which all three angles are acute
Examples
httpwwwhbschoolcomglossarymath2definegr5acute_triangle5html222005 92621 AM
addend
addend
A number that is added to another in an addition problem
Example
2 + 3 = 5
The addends are 2 and 3
httpwwwhbschoolcomglossarymath2definegr5addends5html222005 92621 AM
addition
addition
The process of finding the total number of items when two groups of items are joined addition is the inverse of subtraction
Example
3 + 2 = 5
httpwwwhbschoolcomglossarymath2definegr5addition5html222005 92622 AM
angle
angle
A figure formed by two rays that have a common endpoint
Example
httpwwwhbschoolcomglossarymath2definegr5angle5html222005 92623 AM
area
area
The number of square units needed to cover a surface
Example
The area is 9 square units
httpwwwhbschoolcomglossarymath2definegr5area5html222005 92623 AM
array
array
An arrangement of objects in rows and columns
Example
httpwwwhbschoolcomglossarymath2definegr5array5html222005 92627 AM
ascending
ascending
From least to greatest number
Example
These numbers are in ascending order
1 2 3 4 5 6 7 8 9 10
httpwwwhbschoolcomglossarymath2definegr5ascending5html222005 92627 AM
Associative Property of Addition
Associative Property of Addition
The property that states that the way addends are grouped does not change the sum
Example
(5 + 9) + 3 = 5 + (9 + 3)
14 + 3 = 5 + 12 17 = 17
httpwwwhbschoolcomglossarymath2definegr5asso_prop_add5html222005 92627 AM
average
average
The number found by dividing the sum of a set of numbers by the number of addends
See also mean
httpwwwhbschoolcomglossarymath2definegr5average5html222005 92628 AM
axis
axis
The horizontal or vertical number line used in a coordinate plane the line at the side or bottom of a graph
Example
httpwwwhbschoolcomglossarymath2definegr5axis5html222005 92628 AM
bar graph
bar graph
A graph that uses horizontal or vertical bars to display countable data
Example
httpwwwhbschoolcomglossarymath2definegr5bar_graph5html222005 92629 AM
base
base
A number used as a repeated factor
Example
83= 8 x 8 x 8 The base is 8
httpwwwhbschoolcomglossarymath2definegr5base1_5html222005 92629 AM
base
base
A side of a polygon or a face of a solid figure by which the figure is measured or named
Examples
httpwwwhbschoolcomglossarymath2definegr5base2_5html222005 92630 AM
benchmark
benchmark
A familiar number used as a point of reference
Example
Use the benchmark to decide which is the most reasonable number of beans in the jar
100 400 4000 Benchmark 50 beans
A reasonable number of beans in the jar is 400
httpwwwhbschoolcomglossarymath2definegr5benchmark5html222005 92631 AM
billion
billion
One thousand million
Example
Billions Millions Thousands OnesHundreds Tens Ones Hundreds Tens Ones Hundreds Tens Ones Hundreds Tens Ones
1 0 0 0 0 0 0 0 0 0
httpwwwhbschoolcomglossarymath2definegr5billion5html222005 92631 AM
capacity
capacity
The amount a container can hold when filled
Example
httpwwwhbschoolcomglossarymath2definegr5capacity5html222005 92635 AM
cardinal number
cardinal number
A number that tells how many
Examples
4 puppies 93 cents
httpwwwhbschoolcomglossarymath2definegr5cardinal5html222005 92635 AM
centimeter
centimeter (cm)
A metric unit for measuring length
01 meter = 1 centimeter
httpwwwhbschoolcomglossarymath2definegr5centimeter5html222005 92636 AM
central angle
central angle
The angle formed by two radii of a circle that meet at its center
Example
httpwwwhbschoolcomglossarymath2definegr5central_angle5html222005 92636 AM
certain
certain
Sure to happen will always happen
httpwwwhbschoolcomglossarymath2definegr5certain5html222005 92637 AM
chord
chord
A line segment with its endpoints on a circle
Example
httpwwwhbschoolcomglossarymath2definegr5chord5html222005 92638 AM
circle
circle
A closed plane figure with all points on the figure the same distance from the center
Example
httpwwwhbschoolcomglossarymath2definegr5circle5html222005 92638 AM
circle graph
circle graph
A graph the shows how parts of the data are related to the whole and to each other
Example
httpwwwhbschoolcomglossarymath2definegr5circle_graph5html222005 92639 AM
circumference
circumference
The distance around a circle
Example
httpwwwhbschoolcomglossarymath2definegr5circumference5html222005 92640 AM
closed figure
closed figure
A figure that begins and ends at the same point
Examples
httpwwwhbschoolcomglossarymath2definegr5closed_figure5html222005 92640 AM
common factor
common factor
A number that is a factor of two or more numbers
Example
factors of 6 1 2 3 6
factors of 12 1 2 3 4 6 12
The common factors of 6 and 12 are 1 2 3 and 6
httpwwwhbschoolcomglossarymath2definegr5common_factor5html222005 92641 AM
common multiple
common multiple
A number that is a multiple of two or more numbers
Example
multiples of 4 4 8 12 16 20 24
multiples of 6 6 12 18 24 30
A common multiple of 4 and 6 is 24
httpwwwhbschoolcomglossarymath2definegr5common_multiple5html222005 92641 AM
Commutative Property of Addition
Commutative Property of Addition
The property that states that when the order of two or more addends is changed the sum is the same
Example
4 + 5 = 5 + 4
httpwwwhbschoolcomglossarymath2definegr5Comm_Prop_of_Add5html222005 92641 AM
Commutative Property of Multiplication
Commutative Property of Multiplication
The property that states that when the order of two or more factors is changed the product is the same
Example
5 x 7 = 7 x 5
httpwwwhbschoolcomglossarymath2definegr5Comm_Prop_of_Mult5html222005 92642 AM
compass
compass
A tool used to construct circles
Example
httpwwwhbschoolcomglossarymath2definegr5compass5html222005 92643 AM
compatible number
compatible number
Numbers that are easy to compute mentally
Example
Estimate 4126 divide 8 Think 40 and 8 are compatible numbers 4126 divide 8
41 6 divide
4000 divide 8 = 500 So 4126 divide 8 is about 500
httpwwwhbschoolcomglossarymath2definegr5compatible_number5html222005 92643 AM
composite number
composite number
A whole number having more than two factors
Example
Composite Numbers Not Composite Numbers
Number Factors Number Factors
4 1 2 4 1 1
6 1 2 3 6 2 1 2
8 1 2 4 8 3 1 3
9 1 3 9 5 1 5
httpwwwhbschoolcomglossarymath2definegr5composite_number5html222005 92644 AM
cone
cone
A solid figure that has a circular base and one vertex
Examples
httpwwwhbschoolcomglossarymath2definegr5cone5html222005 92644 AM
congruent
congruent
Having the same size and shape
Example
The triangles are congruent
httpwwwhbschoolcomglossarymath2definegr5congruent5html222005 92645 AM
congruent figures
congruent figures
Figures that have the same size and shape
Example
The triangles are congruent
httpwwwhbschoolcomglossarymath2definegr5congruent_figures5html222005 92646 AM
contrast
contrast
To examine for differences
httpwwwhbschoolcomglossarymath2definegr5contrast5html222005 92646 AM
coordinate plane
coordinate plane
A plane formed by two intersecting and perpendicular number lines called axes
Example
httpwwwhbschoolcomglossarymath2definegr5coordinate_plane5html222005 92647 AM
coordinates
coordinates
The numbers in an ordered pair
Example
The coordinates of A are (1 3) The coordinates of B are (-4 -3)
httpwwwhbschoolcomglossarymath2definegr5coordinates5html222005 92647 AM
cube
cube
A solid figure with six congruent square faces
Examples
httpwwwhbschoolcomglossarymath2definegr5cube5html222005 92648 AM
cubic unit
cubic unit
A unit of volume with dimensions 1 unit x 1 unit x 1 unit
Example
4 cubic units
httpwwwhbschoolcomglossarymath2definegr5cubic_unit5html222005 92649 AM
cumulative frequency
cumulative frequency
A running total of the number of items counted or surveyed
Example
httpwwwhbschoolcomglossarymath2definegr5cumulative_frequency5html222005 92649 AM
cup
cup
A customary unit used to measure capacity
8 ounces = 1 cup
httpwwwhbschoolcomglossarymath2definegr5cup5html222005 92650 AM
cylinder
cylinder
A solid figure that has two parallel bases that are congruent circles
Examples
httpwwwhbschoolcomglossarymath2definegr5cylinder5html222005 92651 AM
data
data
Information collected about people or things
httpwwwhbschoolcomglossarymath2definegr5data5html222005 92651 AM
decimal number
decimal number
A number with one or more digits to the right of the decimal point
Example
327
httpwwwhbschoolcomglossarymath2definegr5decimal_number5html222005 92652 AM
decimal point
decimal point
A symbol used to separate dollars from cents in money and the ones place from the tenths place in decimal numbers
Example
httpwwwhbschoolcomglossarymath2definegr5decimal_point5html222005 92653 AM
decimal system
decimal system
A system of computation based on the number ten
Example
httpwwwhbschoolcomglossarymath2definegr5decimal_system5html222005 92653 AM
decimeter
decimeter
A unit of length in the metric system
10 decimeters = 1 meter
httpwwwhbschoolcomglossarymath2definegr5decimeter5html222005 92654 AM
degree (deg)
degree (deg)
A unit for measuring angles and temperature
Examples
httpwwwhbschoolcomglossarymath2definegr5degree5html222005 92655 AM
degree Celsius (degC)
degree Celsius (degC)
A metric unit for measuring temperature
Example
httpwwwhbschoolcomglossarymath2definegr5degrees_Celsius5html222005 92655 AM
degree Fahrenheit (degF)
degree Fahrenheit (degF)
A customary unit for measuring temperature
Example
httpwwwhbschoolcomglossarymath2definegr5degrees_Fahrenheit5html222005 92656 AM
denominator
denominator
The number below the bar in a fraction that tells how many equal parts are in the whole
Example
httpwwwhbschoolcomglossarymath2definegr5denominator5html222005 92657 AM
descending
descending
From greatest to least number
Example
These numbers are in descending order
10 9 8 7 6 5 4 3 2 1
httpwwwhbschoolcomglossarymath2definegr5descending5html222005 92658 AM
diameter
diameter
A line segment that passes through the center of
a circle and has its endpoints on the circle
Example
diameter
httpwwwhbschoolcomglossarymath2definegr5diameter5html222005 92658 AM
difference
difference
The answer in a subtraction problem
Example
88 ndash 5 = 3 ndash 5
33 is the difference
httpwwwhbschoolcomglossarymath2definegr5difference5html222005 92659 AM
digit
digit
Any one of the ten symbols 0 1 2 3 4 5 6 7 8 or 9 used to write numbers
httpwwwhbschoolcomglossarymath2definegr5digit5html222005 92659 AM
dimension
dimension
A measure in one direction the length width or height of a figure
httpwwwhbschoolcomglossarymath2definegr5dimension5html222005 92659 AM
Distributive Property of Multiplication
Distributive Property of Multiplication
The property that states that multiplying a sum by a number is the same as multiplying each addend by the number and then adding the products
Example
3 x (4 + 2) = (3 x 4) + (3 x 2) 3 x 6 = 12 + 6
18 = 18
httpwwwhbschoolcomglossarymath2definegr5Dist_Prop_of_Mult5html222005 92700 AM
dividend
dividend
The number that is to be divided in a division problem
Example
35 divide 5 = 7
The dividend is 35
httpwwwhbschoolcomglossarymath2definegr5dividend5html222005 92700 AM
divisible
divisible
A number is divisible by another number if the quotient is a whole number and the remainder is zero
Example
21 is divisible by 3
httpwwwhbschoolcomglossarymath2definegr5divisible5html222005 92701 AM
division
division
The process of sharing a number of items to find how many groups can be made or how many items will be in each group division is the inverse of multiplication
Example
6 divide 3 = 2
httpwwwhbschoolcomglossarymath2definegr5division5html222005 92701 AM
divisor
divisor
The number that divides the dividend
Example
18 divide 3 = 6
The divisor is 3
httpwwwhbschoolcomglossarymath2definegr5divisor5html222005 92702 AM
double-bar graph
double-bar graph
A bar graph used to compare two similar kinds of data
Example
httpwwwhbschoolcomglossarymath2definegr5double_bargraph5html222005 92703 AM
edge
edge
The line segment where two faces of a solid figure meet
Example
edge
httpwwwhbschoolcomglossarymath2definegr5edge5html222005 92703 AM
elapsed time
elapsed time
The amount of time that passes between the start of an activity and the end of that activity
Example
httpwwwhbschoolcomglossarymath2definegr5elapsed_time5html222005 92704 AM
equally likely
equally likely
Having the same chance of occurring
Example
You are equally likely to roll 1 2 3 4 5 or 6
httpwwwhbschoolcomglossarymath2definegr5equally_likely5html222005 92705 AM
equation
equation
An algebraic or numerical sentence that shows that two quantities are equal
Examples
3 + 7 = 10
4 ndash 1 = 3
12 + n = 21
httpwwwhbschoolcomglossarymath2definegr5equation5html222005 92705 AM
equilateral triangle
equilateral triangle
A triangle with three congruent sides
Example
httpwwwhbschoolcomglossarymath2definegr5equilateral_triangle5html222005 92706 AM
equivalent
equivalent
Having the same value
Example
httpwwwhbschoolcomglossarymath2definegr5equivalent5html222005 92706 AM
equivalent decimals
equivalent decimals
Decimals that name the same amount
Example
05 = 050 = 0500
httpwwwhbschoolcomglossarymath2definegr5equivalent_decimals5html222005 92707 AM
equivalent fractions
equivalent fractions
Fractions that name the same amount
Example
httpwwwhbschoolcomglossarymath2definegr5equivalent_fractions5html222005 92707 AM
equivalent ratios
equivalent ratios
Ratios that make the same comparisons
Example
httpwwwhbschoolcomglossarymath2definegr5equivalent_ratios5html222005 92708 AM
estimate
estimate
A number close to an exact amount
httpwwwhbschoolcomglossarymath2definegr5estimate_n5html222005 92708 AM
estimate
estimate
To find a number that is close to an exact amount
Example
32 x 9
30 x 10 = 300 estimate 32 x 9 is about 300
httpwwwhbschoolcomglossarymath2definegr5estimate_v5html222005 92709 AM
evaluate
evaluate
To find the value of a numerical or algebraic expression
Example
httpwwwhbschoolcomglossarymath2definegr5evaluate5html222005 92709 AM
event
event
A set of outcomes
httpwwwhbschoolcomglossarymath2definegr5event5html222005 92710 AM
expanded form
expanded form
A way to write numbers by showing the value of each digit
Examples
635 = 600 + 30 + 5
1479 = 1000 + 400 + 70 + 9
httpwwwhbschoolcomglossarymath2definegr5expanded_form5html222005 92710 AM
exponent
exponent
A number that shows how many times the base is used as a factor
Example
The exponent is 3 indicating that 8 is used as a factor 3 times
httpwwwhbschoolcomglossarymath2definegr5exponent5html222005 92711 AM
expression
expression
A mathematical phrase that combines numbers operation signs and sometimes variables but doesnt have an equal sign
Examples
4 + 3 9 ndash 2
3 x (2 + 6) 4 + n
httpwwwhbschoolcomglossarymath2definegr5expression5html222005 92711 AM
face
face
A polygon that is a flat surface of a solid figure
Example
face
httpwwwhbschoolcomglossarymath2definegr5face5html222005 92712 AM
factor
factor
A number that is multiplied by another number to find a product
Example
44 x 7 = 28
x 7
28
The factors are 4 and 7
httpwwwhbschoolcomglossarymath2definegr5factor5html222005 92712 AM
factor tree
factor tree
A diagram that shows the prime factors of a number
Example
The prime factors of 36 are 2 and 3
httpwwwhbschoolcomglossarymath2definegr5factor_tree5html222005 92713 AM
figurate numbers
figurate numbers
Numbers that can be represented by geometric figures
Examples
httpwwwhbschoolcomglossarymath2definegr5figurate_numbers5html222005 92713 AM
foot (ft)
foot (ft)
A customary unit for measuring length or distance
1 foot = 12 inches
httpwwwhbschoolcomglossarymath2definegr5foot5html222005 92714 AM
formula
formula
A rule that is expressed with symbols
Example
formula for area of a rectangle Area = length x width or A = l x
w
httpwwwhbschoolcomglossarymath2definegr5formula5html222005 92714 AM
fraction
fraction
A number that names a part of a whole or a part of a group
Example
httpwwwhbschoolcomglossarymath2definegr5fraction5html222005 92715 AM
frequency
frequency
The number of times an event occurs
httpwwwhbschoolcomglossarymath2definegr5frequency5html222005 92715 AM
frequency table
frequency table
A table that uses numbers to record data about how often something happens
Example
FREQUENCY TABLE
DayNumber of Students
(Frequency)
Monday 15
Tuesday 13
Wednesday 5
Thursday 9
Friday 17
httpwwwhbschoolcomglossarymath2definegr5frequency_table5html222005 92716 AM
function
function
A relationship between two quantities in which one quantity depends on the other
httpwwwhbschoolcomglossarymath2definegr5function5html222005 92716 AM
function table
function table
A table that matches each input value of a function with an output value The output values are determined by the function
Example
y = 5x + 4
x 0 5 10 15 20
y 4 29 54 79 104
httpwwwhbschoolcomglossarymath2definegr5function_table5html222005 92716 AM
gallon (gal)
gallon (gal)
A customary unit for measuring capacity
4 quarts = 1 gallon
httpwwwhbschoolcomglossarymath2definegr5gallon5html222005 92717 AM
gram (g)
gram (g)
A metric unit for measuring mass
1000 milligrams = 1 gram
httpwwwhbschoolcomglossarymath2definegr5gram5html222005 92718 AM
greater than (gt)
greater than (gt)
A symbol used to compare two numbers with the greater number given first
Example
8 gt 6
8 is greater than 6
httpwwwhbschoolcomglossarymath2definegr5greater_than5html222005 92718 AM
greatest common factor (GCF)
greatest common factor (GCF)
The greatest factor that two or more numbers have in common
Example
18 1 2 3 6 9 18
30 1 2 3 5 6 10 15 30
6 is the GCF of 18 and 30
httpwwwhbschoolcomglossarymath2definegr5greatest_common_f5html222005 92719 AM
height
height
The length of a perpendicular from the base to the top of a plane figure or solid figure
Example
height
httpwwwhbschoolcomglossarymath2definegr5height5html222005 92719 AM
hexagon
hexagon
A polygon with six sides and six angles
Examples
httpwwwhbschoolcomglossarymath2definegr5hexagon5html222005 92720 AM
histogram
histogram
A bar graph that shows the number of times data occur within intervals
Example
httpwwwhbschoolcomglossarymath2definegr5histogram5html222005 92721 AM
hundredth
hundredth
One of one hundred equal parts
Example
httpwwwhbschoolcomglossarymath2definegr5hundredth5html222005 92722 AM
hypotenuse
hypotenuse
In a right triangle the side opposite the right angle the longest side in a right triangle
Example
hypotenuse
httpwwwhbschoolcomglossarymath2definegr5hypotenuse5html222005 92722 AM
impossible
impossible
Never able to happen
httpwwwhbschoolcomglossarymath2definegr5impossible5html222005 92723 AM
inch (in)
inch (in)
A customary unit used for measuring length
12 inches = 1 foot
httpwwwhbschoolcomglossarymath2definegr5inch5html222005 92723 AM
inequality
inequality
A mathematical sentence that shows that two amounts are not equal
Examples
httpwwwhbschoolcomglossarymath2definegr5inequality5html222005 92724 AM
integers
integers
The set of whole numbers and their opposites
Example
httpwwwhbschoolcomglossarymath2definegr5integers5html222005 92724 AM
intersecting lines
intersecting lines
Lines that cross at exactly one point
Example
Line EF intersects line GH
httpwwwhbschoolcomglossarymath2definegr5intersecting_lines5html222005 92725 AM
interval
interval
The distance between one number and the next on the scale of a graph
Example
httpwwwhbschoolcomglossarymath2definegr5interval5html222005 92725 AM
inverse operations
inverse operations
Opposite operations that undo each other addition and subtraction are inverse operations multiplication and division are inverse operations
Examples
5 + 4 = 9 so 9 ndash 4 = 5
3 x 4 = 12 so 12 divide 4 = 3
httpwwwhbschoolcomglossarymath2definegr5inverse_operations5html222005 92726 AM
isosceles triangle
isosceles triangle
A triangle with two congruent sides
Example
httpwwwhbschoolcomglossarymath2definegr5isosceles_triangle5html222005 92727 AM
kilogram (kg)
kilogram (kg)
A metric unit for measuring mass
1000 grams = 1 kilogram
httpwwwhbschoolcomglossarymath2definegr5kilogram5html222005 92727 AM
kiloliter (kL)
kiloliter (kL)
A metric unit for measuring capacity
1000 liters = 1 kiloliter
httpwwwhbschoolcomglossarymath2definegr5kiloliter5html222005 92728 AM
kilometer (km)
kilometer (km)
A metric unit for measuring length
1000 meters = 1 kilometer
httpwwwhbschoolcomglossarymath2definegr5kilometer5html222005 92728 AM
least common denominator (LCD)
least common denominator (LCD)
The least common multiple of two or more denominators
Example
httpwwwhbschoolcomglossarymath2definegr5least_common_d5html222005 92729 AM
least common multiple (LCM)
least common multiple (LCM)
The smallest number other than zero that is a common multiple of two or more numbers
Example
multiples of 6 6 12 18 24 30 36
multiples of 9 9 18 27 36 45 54
The LCM of 6 and 9 is 18
httpwwwhbschoolcomglossarymath2definegr5least_common_m5html222005 92729 AM
leg
leg
In a right triangle either of the two sides that form the right angle
Example
httpwwwhbschoolcomglossarymath2definegr5leg5html222005 92730 AM
less than (lt)
less than (lt)
A symbol used to compare two numbers with the lesser number given first
Example
6 lt 8
6 is less than 8
httpwwwhbschoolcomglossarymath2definegr5less_than5html222005 92730 AM
like fractions
like fractions
Fractions that have the same denominator
Example
1 2 4 4
httpwwwhbschoolcomglossarymath2definegr5like_fractions5html222005 92730 AM
line
line
A straight path in a plane that goes on forever in opposite directions
Example
line AB or line BA
httpwwwhbschoolcomglossarymath2definegr5line5html222005 92731 AM
linear unit
linear unit
A measure of length width height or distance
Examples
An inch is about the length of your thumb from the first knuckle to the tip
A foot is about the height of a cat
A yard is about the length of a baseball bat
A mile is about the distance you can walk in 20 minutes
httpwwwhbschoolcomglossarymath2definegr5linear_unit5html222005 92732 AM
line graph
line graph
A graph that uses a line to show how data change over time
Example
httpwwwhbschoolcomglossarymath2definegr5line_graph5html222005 92732 AM
line plot
line plot
A graph that shows frequency of data along a number line
Example
httpwwwhbschoolcomglossarymath2definegr5line_plot5html222005 92733 AM
line segment
line segment
A part of a line that includes two points called endpoints and all of the points between them
Example
line segment AB or line segment BA
httpwwwhbschoolcomglossarymath2definegr5line_segment5html222005 92734 AM
line symmetry
line symmetry
A figure has line symmetry if a line can separate the figure into two congruent parts
Example
httpwwwhbschoolcomglossarymath2definegr5line_symmetry5html222005 92737 AM
liter (L)
liter (L)
A metric unit for measuring capacity
1 liter = 1000 milliliters
httpwwwhbschoolcomglossarymath2definegr5liter5html222005 92738 AM
map scale
map scale
A ratio that compares the distance on a map to the actual distance
Example
The scale is 1 cm to 100 mi
httpwwwhbschoolcomglossarymath2definegr5map_scale5html222005 92738 AM
mass
mass
The amount of matter in an object
httpwwwhbschoolcomglossarymath2definegr5mass5html222005 92739 AM
mean
mean
The number found by dividing the sum of a set of numbers by the number of addends see also average
Example
74 91 63 92 85
The mean of 74 91 63 92 and 85 is 81
httpwwwhbschoolcomglossarymath2definegr5mean5html222005 92740 AM
median
median
The middle number or the average of the two middle numbers in an ordered set of data
Example
The median of 1 3 4 6 and 7 is 4
httpwwwhbschoolcomglossarymath2definegr5median5html222005 92740 AM
meter
meter
A metric unit for measuring length and distance
1 meter = 100 centimeters
httpwwwhbschoolcomglossarymath2definegr5meter5html222005 92741 AM
mile
mile
A customary unit for measuring length and distance
5280 feet = 1 mile
httpwwwhbschoolcomglossarymath2definegr5mile5html222005 92741 AM
milligram
milligram
A metric unit for measuring mass
1000 milligrams = 1 gram
httpwwwhbschoolcomglossarymath2definegr5milligram5html222005 92741 AM
milliliter
milliliter (mL)
A metric unit for measuring capacity
1000 milliliters = 1 liter
httpwwwhbschoolcomglossarymath2definegr5milliliter5html222005 92742 AM
millimeter (mm)
millimeter (mm)
A metric unit for measuring length
1 millimeter = 0001 meter
httpwwwhbschoolcomglossarymath2definegr5millimeter5html222005 92743 AM
million
million
1000 thousands written as 1000000
Example
Millions Thousands OnesHundreds Tens Ones Hundreds Tens Ones Hundreds Tens Ones
1 0 0 0 0 0 0
httpwwwhbschoolcomglossarymath2definegr5million5html222005 92743 AM
mixed number
mixed number
A number represented by a whole number and a fraction
Example
212
httpwwwhbschoolcomglossarymath2definegr5mixed_number5html222005 92743 AM
mode
mode
The numbers or items that occur most often in a set of data
Example
The mode of 1 3 4 4 and 6 is 4
httpwwwhbschoolcomglossarymath2definegr5mode5html222005 92744 AM
multiple
multiple
The product of a given whole number and another whole number
Examples
httpwwwhbschoolcomglossarymath2definegr5multiple5html222005 92745 AM
multiplication
multiplication
The process of finding the total number of items in equal-sized groups or of finding the total number of items in a given number of groups when each group contains the
same number of items multiplication is the inverse of division
Example
3 x 4 = 12
httpwwwhbschoolcomglossarymath2definegr5multiplication5html222005 92749 AM
multistep problem
multistep problem
A problem requiring more than one step to solve
Example
The soccer players sold bottles of water to earn money for equipment They charged $225 for each bottle of water They sold 52 bottles on Saturday and 45 bottles on Sunday How much did they earn Step 1
Add to find the total number of bottles sold
52 bottles sold on Saturday
+45 bottles sold on Sunday
97
The players sold 97 bottles of water Step 2
Multiply to find the amount of money earned
$225 price for each bottle
x 97 total number of bottles
$21825
So the players earned $21825
httpwwwhbschoolcomglossarymath2definegr5multistep_problems5html222005 92750 AM
negative integer
negative integer
Any integer less than zero
Example
httpwwwhbschoolcomglossarymath2definegr5negative_integer5html222005 92751 AM
net
net
A two-dimensional pattern that can be folded to make a three-dimensional prism or pyramid
Example
httpwwwhbschoolcomglossarymath2definegr5net5html222005 92756 AM
nominal number
nominal number
A number that names a thing
Examples
httpwwwhbschoolcomglossarymath2definegr5nominal5html222005 92756 AM
number line
number line
A line with equally spaced tick marks named by numbers
Example
httpwwwhbschoolcomglossarymath2definegr5number_line5html222005 92757 AM
numerator
numerator
The number above the bar in a fraction that tells how many equal parts of the whole are being considered
Example
httpwwwhbschoolcomglossarymath2definegr5numerator5html222005 92758 AM
obtuse angle
obtuse angle
An angle whose measure is greater than 90deg and less than 180deg
Example
httpwwwhbschoolcomglossarymath2definegr5obtuse_angle5html222005 92758 AM
obtuse triangle
obtuse triangle
A triangle that has one obtuse angle
Example
httpwwwhbschoolcomglossarymath2definegr5obtuse_triangle5html222005 92759 AM
octagon
octagon
A polygon with eight sides
Examples
httpwwwhbschoolcomglossarymath2definegr5octagon5html222005 92800 AM
opposites
opposites
Two numbers that are the same distance but in opposite directions from zero on a number line
Example
These pairs of numbers are opposites on the number line
httpwwwhbschoolcomglossarymath2definegr5opposites5html222005 92800 AM
ordered pair
ordered pair
A pair of numbers used to locate a point on a coordinate plane the first number tells how far to move horizontally and the second number tells how far to move vertically
Example
(12) represents 1 unit to the right of zero and 2 units up
httpwwwhbschoolcomglossarymath2definegr5ordered_pair5html222005 92807 AM
order of operations
order of operations
Rules for performing operations in expressions with more than one operation
1 Do the operations inside parentheses 2 Multiply and divide from left to right 3 Add and subtract from left to right
Example
6 + (4 X 2) divide 2 ndash 5 6 + 8 divide 2 ndash 5
6 + 4 ndash 5 10 ndash 5
5
Multiply inside parentheses Divide Add Subtract
httpwwwhbschoolcomglossarymath2definegr5Order_Operations5html222005 92808 AM
ordinal number
ordinal number
A number that tells position or order
Examples
Jon won first place
Jean is 4th in line
httpwwwhbschoolcomglossarymath2definegr5ordinal5html222005 92808 AM
origin
origin
The point where the x-axis and the y-axis in the coordinate plane intersect (0 0)
Example
httpwwwhbschoolcomglossarymath2definegr5origin5html222005 92809 AM
ounce
ounce (oz)
A customary unit for measuring weight
16 ounces = 1 pound
httpwwwhbschoolcomglossarymath2definegr5ounce5html222005 92809 AM
outcome
outcome
A possible result of an experiment
Example
Toss a coin The outcomes are heads and tails
httpwwwhbschoolcomglossarymath2definegr5outcome5html222005 92810 AM
outlier
outlier
A value separated from the rest of the data
Example
Free-Throw Baskets Made
httpwwwhbschoolcomglossarymath2definegr5outlier5html222005 92811 AM
parallel lines
parallel lines
Lines in a plane that never intersect
Example
httpwwwhbschoolcomglossarymath2definegr5parallel_lines5html222005 92812 AM
parallelogram
parallelogram
A quadrilateral whose opposite sides are parallel and congruent
Examples
httpwwwhbschoolcomglossarymath2definegr5parallelogram5html222005 92812 AM
parentheses
parentheses
The symbols used to show which operation or operations in an expression should be done first
Example
(12 + 4) ndash 3
httpwwwhbschoolcomglossarymath2definegr5parentheses5html222005 92813 AM
pentagon
pentagon
A polygon with five sides
Examples
httpwwwhbschoolcomglossarymath2definegr5pentagon5html222005 92813 AM
percent
percent
The ratio of a number to 100
Example
40 of the squares are shaded
httpwwwhbschoolcomglossarymath2definegr5percent5html222005 92814 AM
perimeter
perimeter
The distance around a figure
Example
2 cm + 3 cm + 3 cm = 8 cm The perimeter of this figure is 8
centimeters
httpwwwhbschoolcomglossarymath2definegr5perimeter5html222005 92815 AM
period
period
Each group of three digits separated by commas in a multidigit number
Example
httpwwwhbschoolcomglossarymath2definegr5period5html222005 92815 AM
perpendicular lines
perpendicular lines
Two lines that intersect to form four right angles
Example
httpwwwhbschoolcomglossarymath2definegr5perpendicular_lines5html222005 92816 AM
pi
(noun)
The ratio of the circumference of a circle to its
diameter
Example
An approximate decimal value of pi is 314
httpwwwhbschoolcomglossarymath2definegr5pi5html222005 92817 AM